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Finding the Fourth Proportional to 208,848.57, 288,142.43 and 118,195.53

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Solution

The fourth proportional to 208,848.57, 288,142.43 and 118,195.53 is: 163,071.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,848.57 : 288,142.43 = 118,195.53 : x
  2. Step 2: Convert to fraction form
    208,848.57/288,142.43 = 118,195.53/x
  3. Step 3: Cross multiply
    208,848.57x = 288,142.43 × 118,195.53
  4. Step 4: Simplify right side
    208,848.57x = 34,057,146,638.36
  5. Step 5: Solve for x
    x = 34,057,146,638.36/208,848.57
  6. Step 6: Final answer
    x = 163,071.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.